(x - 3)(2x + 7)
-2(x + 5)(x - 6)
(x + 4)(2x + 3)
(x - 4)(2x + 3)
It has roots x = 2.618 and x = 0.38197
If you mean: 2xsquared+3x+1 then it is (2x+1)(x+1) when factored
(x+7) and (x-3)
It is: 2x2+4x+2 by dividing all terms by 2 it is then (x+1)(x+1) when factored
f(x) = 2x2 + 4x - 7
x2 + 4x - 21 = (x + 7)(x - 3). The trick is to find 2 numbers which sum to 4 and have a product of -21.
x = -1.5 or -2 2x2 + 7x + 6 = 0 => (2x + 3)(x + 2) = 0 Thus 2x + 3 = 0 => x = -1.5 or x + 2 = 0 => x = -2
2(x - 13)(x + 13)
2x2-4x-3x+6 2x2-7x+6 (2x+3)(x+2)